EP0115809B1 - Stickstoffhaltige Borsäureester und deren Verwendung in hydraulischen Flüssigkeiten - Google Patents
Stickstoffhaltige Borsäureester und deren Verwendung in hydraulischen Flüssigkeiten Download PDFInfo
- Publication number
- EP0115809B1 EP0115809B1 EP84100686A EP84100686A EP0115809B1 EP 0115809 B1 EP0115809 B1 EP 0115809B1 EP 84100686 A EP84100686 A EP 84100686A EP 84100686 A EP84100686 A EP 84100686A EP 0115809 B1 EP0115809 B1 EP 0115809B1
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- EP
- European Patent Office
- Prior art keywords
- boric acid
- carbon atoms
- amine
- alkylene
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 title claims description 19
- 239000012530 fluid Substances 0.000 title claims description 16
- 239000004327 boric acid Substances 0.000 title claims description 7
- 150000002148 esters Chemical class 0.000 title description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title description 4
- 229910052757 nitrogen Inorganic materials 0.000 title description 2
- -1 Nitrogen-containing boric acid esters Chemical class 0.000 claims description 19
- 229960002645 boric acid Drugs 0.000 claims description 13
- 235000010338 boric acid Nutrition 0.000 claims description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 10
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 description 27
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 6
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 6
- 229920000151 polyglycol Polymers 0.000 description 5
- 239000010695 polyglycol Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SNBFDVVWWLGGFD-UHFFFAOYSA-N 1-[2-(2-hydroxyethoxy)ethoxy]propan-2-ol Chemical compound CC(O)COCCOCCO SNBFDVVWWLGGFD-UHFFFAOYSA-N 0.000 description 2
- ZNYRFEPBTVGZDN-UHFFFAOYSA-N 5S,6S-epoxy-15R-hydroxy-ETE Chemical class COCCOCCOCCOCCO ZNYRFEPBTVGZDN-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 1
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical class CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/02—Boron compounds
- C07F5/04—Esters of boric acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/78—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing boron
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/52—Lubricating compositions characterised by the base-material being a macromolecular compound containing boron
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
- C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
- C10M2209/1055—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only used as base material
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
- C10M2209/1065—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only used as base material
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
- C10M2209/1075—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106 used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
- C10M2209/1085—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
- C10M2209/1095—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
- C10M2227/0615—Esters derived from boron used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
- C10M2227/062—Cyclic esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
- C10M2227/062—Cyclic esters
- C10M2227/0625—Cyclic esters used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/003—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- the present invention relates to new nitrogen-containing boric acid esters based on oxalkylated primary and / or secondary amino (poly) glycol alkyl ethers and their use in hydraulic fluids.
- Hydraulic fluids especially brake fluids for vehicles, are subject to high demands with regard to their chemical and physical properties.
- brake fluids must in particular have a high boiling point (Kp) and wet boiling point (NKp) and a viscosity that can only be found within a wide temperature range changes slightly.
- Kp high boiling point
- NKp wet boiling point
- the corresponding requirements for DOT 4 (or DOT 5) are: Kp 230 ° C (260 ° C), N Kp 155 ° C (180 ° C), viscosity at -40 ° C 1800 mm 2 / sec (900 mm 2 / sec).
- brake fluids usually consist of several components e.g. Glycol ethers as a basic component, polyglycols as lubricants, inhibitors (for example amines) for corrosion protection and antioxidants.
- Glycol ethers as a basic component
- polyglycols as lubricants
- inhibitors for example amines
- Brake fluids that are to meet the requirements of DOT 4 often contain an addition of boric acid esters to ensure the required value of the wet boiling point (DE-OSen 17 68 933 and 29 01 835).
- the commercially available brake fluids which contain methyl triglycol orthoborate in particular, are still in need of improvement; e.g. they meet the required specifications and properties such as wet boiling point, viscosity and evaporation loss only with a relatively high boron content and / or by adding considerable amounts of other auxiliaries.
- boric acid esters should be used for this purpose, which simultaneously contain derivatized amino groups.
- the products mentioned there do not meet all the key figures of the specification at the same time.
- the object of the invention was now to produce new nitrogen-containing boric acid esters which meet the properties required for hydraulic fluids, in particular brake fluids, especially with regard to viscosity.
- Compounds of general structure II or III can be used as primary or secondary amino (poly) glycol alkyl ethers.
- the oxyalkylation of amine components II and 111 is also carried out according to methods known per se with ethylene oxide, 1,2-propylene oxide or a corresponding butylene oxide and leads to components of the general structure IV, V and VI (Poly) glycol alkyl ethers are monoethers of ethylene, propylene or butylene glycol or their uniform or mixed oligomers and a monohydric alkanol with 1 to 4 carbon atoms, methyl triglycol being preferred.
- the boric acid esters can also be produced using - generally minor amounts - simple unetherified glycols or their oligomers. It is preferred to use small amounts of diethylene glycol, triethylene glycol or mixed ethylene / propylene glycol oligomers, which are also commercially available.
- the esterification of orthoboric acid is carried out in a manner known per se, e.g. enters orthoboric acid into the mixture of the alcohols heated to 90 ° C. with stirring and the temperature is gradually increased under reduced pressure until the water formed is largely distilled off. This is usually the case after 3 to 10 hours and after reaching a temperature of 110 to 190 ° C.
- borosters are generally not chemically uniform compounds, but mixtures, as is the experience in the implementation of multi-functional compounds.
- the new boric acid esters are characterized by their low viscosity, which makes them particularly suitable for the formulation of DOT 5 brake fluids. Another advantage of the new boric acid esters is that, owing to their relatively high nitrogen content, smaller amounts or no additional amine is required for the inhibition and as an alkali reserve. The addition of dialkyl ethers is also eliminated.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
Description
- Die vorliegende Erfindung betrifft neue stickstoffhaltige Borsäureester auf Basis oxalkylierter primärer und/oder sekundärer Amino(poly)glykolalkylether sowie deren Verwendung in hydraulischen Flüssigkeiten.
- An hydraulische Flüssigkeiten, insbesondere an Bremsflüssigkeiten für Fahrzeuge, werden bezüglich ihrer chemischen und physikalischen Eigenschaften hohe Ansprüche gestellt.
- Nach den zur Zeit gültigen Standardvorschriften (U.S. Federal Motor Vehicle Safety Standard 116, Society of Automotive Engineers Standard J 1703) müssen Bremsflüssigkeiten insbesondere einen hohen Kochpunkt (Kp) sowie Naßkochpunkt (NKp) besitzen und eine Viskosität aufweisen, die sich innerhalb eines großen Temperaturbereichs nur geringfügig ändert. Die entsprechenden Anforderungen für DOT 4 (bzw. DOT 5) lauten: Kp 230° C (260° C), N Kp 155° C (180° C), Viskosität bei -40° C 1800 mm2/sec (900 mm2/sec).
- Zusätzlich müssen auch die weiteren Anforderungen der o.g. Vorschriften erfüllt werden, betreffend beispielsweise die chemische und thermische Stabilität, das Korrosionsverhalten gegenüber Metallen oder das Quellungsverhalten gegenüber polymeren Stoffen (z.B. Kautschuk).
- Aus diesen Gründen bestehen Bremsflüssigkeiten üblicherweise aus mehreren Komponenten z.B. Glykolethern als Grundbestandteil, Polyglykole als Schmiermittel, Inhibitoren (beispielsweise Amine) für den Korrosionsschutz sowie Antioxidantien.
- Bremsflüssigkeiten, die die Anforderungen gemäß DOT 4 erfüllen sollen, enthalten häufig einen Zusatz von Borsäureestern, um den erforderlichen Wert des Naßkochpunkts sicherzustellen (DE-OSen 17 68 933 und 29 01 835).
- Die handelsüblichen Bremsflüssigkeiten, die insbesondere Methyltriglykolorthoborat enthalten, sind noch verbesserungsbedürftig; z.B. erfüllen sie die erforderlichen Spezifikationen und geforderten Eigenschaften wie Naßkochpunkt, Viskosität und Verdampfungsverlust nur bei einem verhältnismäßig hohen Gehalt an Bor und/oder durch Zugabe von beträchtlichen Mengen anderer Hilfsmittel.
- Nach dem Vorschlag der DE-OS 28 04 535, EP-PS 23 700 und der JP-OS 133 491/80 sollen dazu Borsäureester eingesetzt werden, die gleichzeitig derivatisierte Aminogruppen enthalten. Beim Einsatz in Bremsflüssigkeiten zeigt sich aber, daß mit den dort genannten Produkten nicht alle Kennzahlen der Spezifikation gleichzeitig erfüllt werden.
- Aufgabe der Erfindung war es nun neue stickstoffhaltige Borsäureester herzustellen, die die für hydraulische Flüssigkeiten, insbesondere Bremsflüssigkeiten, geforderten Eigenschaften, vor allem auch hinsichtlich der Viskosität, erfüllen.
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- R1 und R2 unabhängig voneinander eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen,
- R3 eine Alkylgruppe mit 2 bis 6 Kohlenstoffatomen,
- m, n und p unabhängig voneinander eine ganze Zahl von 1 bis 8,
- A eine 1,2-Alkylengruppe mit 2 bis 4 Kohlenstoffatomen, die für m > 1 gleich oder verschieden ist,
- A2 eine 1,2-Alkylengruppe mit 2 bis 4 Kohlenstoffatomen, die für n > 1 gleich oder verschieden ist,
- A3 eine 1,2-Alkylengruppe mit 2 bis 4 Kohlenstoffatomen, die für p > 1 gleich oder verschieden ist,
- A4 eine 1,2-Alkylengruppe mit 2 bis 4 Kohlenstoffatomen,
- L ein Wasserstoffatom, den Rest A4-OH, der gegebenenfalls mit Orthoborsäure esterartig verknüpft sein kann, oder den Rest (A3Q)p - R3,
- x, y und z einen beliebigen, von 0 verschiedenen Wert bis 2,95,
- x und y außerdem den Wert 0 und
- x + y + z = 3 bedeuten, bzw. deren Gemischen diese Aufgabe vorteilhaft gelöst wird.
- Die neuen Produkte werden erhalten durch Umsetzung in beliebiger Reihenfolge von 1 Mol Orthoborsäure mit
- A) 0,05 bis 1,5 Mol eines oxalkylierten primären und/oder sekundären Amino(poly)glykolalkylethers mit 1 oder 2 veresterbaren Hydroxylgruppen je Molekül,
- B) bis zu 2,95 Mol eines (Poly)glykolalkylethers und
- C) bis zu 1 Mol einer Glykols oder dessen Oligomer
-
- Sie werden vorteilhaft nach an sich bekannten Methoden, z.B. durch Umsetzung von (Poly)glykolalkylethern mit Ammoniak in Gegenwart von Wasserstoff, hergestellt, so daß darauf nicht weiter einzugehen ist.
- Die Oxalkylierung der Aminkomponenten II und 111 erfolgt ebenfalls nach an sich bekannten Methoden mit Ethylenoxid, 1,2-Propylenoxid oder einem entsprechenden Butylenoxid und führt zu Komponenten der allgemeinen Struktur IV, V und VI
(Poly)glykolalkylether sind Monoether von Ethylen-, Propylen- oder Butylenglykol bzw. deren einheitlichen oder gemischten Oligomeren und einem einwertigen Alkanol mit 1 bis 4 Kohlenstoffatomen, wobei Methyltriglykol bevorzugt ist. - Die Borsäureester können ferner unter Mitverwendung von - im allgemeinen untergeordneten Mengen - einfacher unveretherter Glykole oder deren Oligomeren hergestellt sein. Bevorzugt ist die Verwendung geringer Mengen von Diethylenglykol, Triethylenglykol oder gemischter Ethylen-/Propylen-glykol-oligomerer, die auch im Handel erhältlich sind.
- Die Veresterung der Orthoborsäure wird in an sich bekannter Weise durchgaführt, indem man z.B. in die auf 90°C erhitzte Mischung der Alkohole Orthoborsäure unter Rühren einträgt und unter vermindertem Druck die Temperatur allmählich steigert, bis das entstandene Wasser weitgehend abdestilliert ist. Dies ist in der Regel nach 3 bis 10 Stunden und nach Erreichen einer Temperatur von 110 bis 190°C der Fall.
- Es ist nicht erforderlich, vor der Veresterung das Oxalkylierungsprodukt A) zu isolieren.
- Bei diesen Borestern handelt es sich in der Regel um keine chemisch einheitlichen Verbindungen, sondern um Gemische, wie dies bei der Umsetzung mehrfunktioneller Verbindungen untereinander der Erfahrung entspricht.
-
- Je nach Mischungsverhältnis der Ausgangsstoffe A) bis C), d.h. im Verhältnis untereinander und zur Borsäure, erhält man demnach Verbindungen mit 2 oder mehr Mol Borsäure je Mol in geringerer Menge neben solchen, die z.B. nur 1 Mol Borsäure je Mol enthalten.
- Zur Herstellung der erfindungsgemäßen hydraulischen Flüssigkeiten, die den Bedingungen der Spezifikation genügen, werden die stickstoffhaltigen Borsäureester mit Polyglykolalkylethern und Polyglykolen gemischt.
- Eine geeignete Bremsflüssigkeit besteht z.B. aus
- 5 bis 80 Gew.% erfindungsgemäßen Borsäureestern
- 20 bis 95 Gew.% Polyglykolalkylethern und
- bis zu 50 Gew% Polyglykolen.
- Die neuen Borsäureester zeichnen sich durch ihre niedere Viskosität aus, wodurch sie besonders zur Formulierung von DOT 5 Bremsflüssigkeiten geeignet sind. Eine vorteilhafte Wirkung der neuen Borsäureester besteht auch darin, daß infolge ihres relativ hohen Stickstoffgehalts geringere Mengen bzw. überhaupt kein zusätzliches Amin für die Inhibierung und als Alkalireserve erforderlich ist. Auch die Zugabe von Dialkylethern entfällt.
- Folgende Beispiele sollen die Erfindung näher erläutern:
- 490 g primäres Methyltriglykolamin wurden unter Rühren, in Gegenwart von 1 g Wasser und bei einer Temperatur von 75 bis 150°C, innerhalb von 8 Stunden mit 264 g Ethylenoxid umgesetzt. Man erhielt 750 g (99,5 % der berechneten Menge) an Amin 1.
- Analog Amin 1 wurden 1000 g aminiertes Butyltriglykol (70 Gew.% primäres und 30 Gew.% sekundäres Amin) mit 334 g Ethylenoxid umgesetzt. Man erhielt 1 361 g (98,5 % der berechneten Menge) an Amin 2.
- 500 g aminiertes Methyltriglykol techn. (61 Gew.% primäres Amin und 31 Gew.% sekundäres Amin) wurden in Gegenwart von 1 g Kalilauge (50 Gew.%) mit 186,4 g Ethylenoxid umgesetzt. Man erhielt 688,5 g (berechnete Menge) an Amin 3.
- 1 000 g aminiertes Ethyldiglykol techn. (70 Gew.% primäres Amin und 26 Gew.% sekundäres Amin) wurden in Gegenwart von 2 g Kalilauge (50 Gew.%) mit 507,6 g Ethylenoxid umgesetzt. Man erhielt 1 511 g (berechnete Menge) an Amin 4.
- Analog Amin 4 wurden 500 g aminiertes Ethyldiglykol-Gemisch mit 415,4 g 1,2-Butenoxid umgesetzt. Man erhielt 917 g (99,9 % der berechneten Menge) an Amin 5.
- 1 000 g aminiertes Methyltetraglykol (61,7 Gew.% primäres Amin und 38,3 Gew.% sekundäres Amin) wurden mit 334,4 g Ethylenoxid umgesetzt. Man erhielt 1 334 g (99,8 % der berechneten Menge) an Amin 6.
- 500 g aminiertes Methyltetraglykol (75,9 Gew.% primäres Amin sowie 24,1 Gew.% sekundäres Amin) wurden mit 243,6 g 1,2-Propylenoxid umgesetzt. Man erhielt 745 g (99,9 % der berechneten Menge) an Amin 7.
- Zu 589 g Amin 2 und 1 148 g Methyltriglykol wurden unter Rühren bei Raumtemperatur 217 g Orthoborsäure gegeben.
- Während man den Druck auf 2 mbar verminderte und die Temperatur allmählich auf 170°C steigerte, wurde gleichzeitig das entstehende Wasser abdestilliert. Die Reaktion war nach 11 Stunden beendet und man erhielt 1 764 g (entsprechend der berechneten Menge) an Ester 1.
Formulierung einer Bremsflüssigkeit - a) 50 Gew.% Methyltriglykol 50 Gew.% Borester (jeweils Ester 1, 2 und 4)
- b) 60 Gew.% Methyltriglykol 40 Gew.% Borester (jeweils Ester 3 und 5 bis 9).
bis sich kein Wasser mehr abscheidet und unter Entfernung des Wassers, mit der Maßgabe, daß die Molmengen von A), B) und C) unter Berücksichtigung ihrer Hydroxylgruppenzahl einen vollständigen Ester der Borsäure bilden können. Ähnliche Borsäureester, die sich allerdings von anderen Aminokomponenten ableiten, sind Gegenstand der DE-OS 3 132 372 und US-A-3 729 497.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3302970 | 1983-01-29 | ||
| DE19833302970 DE3302970A1 (de) | 1983-01-29 | 1983-01-29 | Stickstoffhaltige borsaeureester und deren verwendung in hydraulischen fluessigkeiten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0115809A2 EP0115809A2 (de) | 1984-08-15 |
| EP0115809A3 EP0115809A3 (en) | 1984-10-17 |
| EP0115809B1 true EP0115809B1 (de) | 1986-03-19 |
Family
ID=6189520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84100686A Expired EP0115809B1 (de) | 1983-01-29 | 1984-01-24 | Stickstoffhaltige Borsäureester und deren Verwendung in hydraulischen Flüssigkeiten |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0115809B1 (de) |
| DE (2) | DE3302970A1 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3637794A (en) * | 1967-04-13 | 1972-01-25 | Olin Mathieson | Borate esters prepared by successive reactions of boric acid with glycol monoethers and polyols |
-
1983
- 1983-01-29 DE DE19833302970 patent/DE3302970A1/de not_active Withdrawn
-
1984
- 1984-01-24 EP EP84100686A patent/EP0115809B1/de not_active Expired
- 1984-01-24 DE DE8484100686T patent/DE3460049D1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0115809A2 (de) | 1984-08-15 |
| DE3302970A1 (de) | 1984-08-02 |
| DE3460049D1 (en) | 1986-04-24 |
| EP0115809A3 (en) | 1984-10-17 |
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